gbsplay through 0.0.103 contains a heap out-of-bounds read vulnerability in vgm_open() in gbs.c that walks the VGM
Affects gbsplaySource GCVE Database
Not known to be exploited · CVSS 4.8 Medium.
Data as of 28 Oct 2026, 22:34 UTC
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10gbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSgbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSgbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 20.04 LTSgbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=focalOther threats | Affected
| Fixed in– |
Ubuntu 18.04 LTSgbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=bionicOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, avoid opening untrusted or suspicious VGM files with gbsplay to mitigate risk.
Description
gbsplay versions up to 0.0.103 contain a heap out-of-bounds read vulnerability in the vgm_open() function within gbs.c. This flaw occurs because the function processes the VGM command stream without proper bounds checking, allowing specially crafted VGM files with wait opcodes and missing 0x66 terminators to trigger reads beyond the heap buffer, causing the player to crash.
References
- ubuntu.com/security/CVE-2026-116727 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-116727 (opens in a new tab)
- github.com/mmitch/gbsplay (opens in a new tab)
- github.com/cveproject/cvelistv5/tree/main/cves/2026/116xxx/cve-2026-116727.json (opens in a new tab)
- github.com/mmitch/gbsplay/blob/0.0.103/gbs.c (opens in a new tab)
- github.com/mmitch/gbsplay/commit/91b1f6df0abd3914f91caa528ec3213d731999e8 (opens in a new tab)
- github.com/mmitch/gbsplay/issues/201 (opens in a new tab)
- hackmd.io/@haindpwn/gbsplay-rom-bank-index-oob-read (opens in a new tab)
- nvd.nist.gov/vuln/detail/cve-2026-116727 (opens in a new tab)
- vulncheck.com/advisories/gbsplay-through-0.0.103-heap-out-of-bounds-read-via-vgm-open-in-gbs-c (opens in a new tab)